Wireless Communication Method and Terminal Device

ABSTRACT

A wireless communication method and device are provided. The method comprises: a terminal device determining a reference uplink signal of a target uplink signal; the terminal device determining the transmission power of the target uplink signal according to the transmission power of the reference uplink signal; and the terminal device transmitting the target uplink signal by using the determined transmission power.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a 371 application of International Application No.PCT/CN2017/096072, filed on Aug. 4, 2017, the entire disclosure of whichis hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to a field of communications, and moreparticularly, to a wireless communication method and terminal device.

BACKGROUND

In a Long Term Evolution (LTE) system, a base station may instruct aterminal device to determine an uplink transmission power to be adoptedby configuring a power control parameter.

In a future communication system, a requirement for communicationperformance is high, therefore, how to make an improvement on atransmission power of terminal device to improve communicationperformance is an urgent problem to be solved.

SUMMARY

Implementations of the present disclosure provide a wirelesscommunication method and a terminal device.

In a first aspect, a wireless communication method is provided,including:

determining, by a terminal device, a reference uplink signal of a targetuplink signal;

determining, by the terminal device, a transmission power of the targetuplink signal according to a transmission power of the reference uplinksignal;

transmitting, by the terminal device, the target uplink signal by usingthe determined transmission power.

In combination with the first aspect, in a possible implementation modeof the first aspect, the target uplink signal may be a Physical UplinkShared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), aPhysical Random Access Channel (PRACH), a Phase Tracking ReferenceSignal (PTRS), or a Sounding Reference Signal (SRS).

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the reference uplink signal is a PUSCH, a PUCCH, a PRACH,a PTRS, or an SRS.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal and the reference uplink signalare uplink signals of a same type.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal is an SRS transmitted on a firstSRS resource, and the reference uplink signal is an SRS transmitted on asecond SRS resource associated with the first SRS resource.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the first SRS resource and the second SRS resource belongto a same SRS resource group.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the second SRS resource is an SRS resource configured by anetwork device for the first SRS resource in the SRS resource group; or,the second SRS resource is a preset SRS resource in the SRS resourcegroup.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the same SRS resource group is used for an uplink beammanagement.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the second SRS resource is an SRS resource configured forthe terminal device by the network device through an SRS ResourceIndication (SRI) and associated with the first SRS resource.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal is a PUSCH; and determining, bythe terminal device, the reference uplink signal of the target uplinksignal, includes: determining, by the terminal device, the referenceuplink signal based on Downlink Control Information (DCI) for schedulingthe PUSCH.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal is a PTRS, and the referenceuplink signal is a PUSCH or a DMRS transmitted on the DemodulationReference Signal (DMRS) port associated with the PTRS.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal and the reference uplink signalsatisfy a specific relationship on at least one of a frequency domaintransmission resource, a time domain transmission resource, atransmission port and a transmission beam.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal and the reference uplink signalare transmitted on a same carrier or adjacent carriers.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal and the reference uplink signalare transmitted through a same port.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal and the reference uplink signalare transmitted through a same beam.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal is an SRS, and the referenceuplink signal is a PUSCH or a PUCCH transmitted last time beforetransmitting the SRS.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the target uplink signal is an uplink signal of a NewRadio (NR) system, and the reference uplink signal is an uplink signalof a Long Term Evolution (LTE) system.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the terminal device determines the transmission power ofthe reference signal uplink signal as the transmission power of thetarget uplink signal.

In combination with the first aspect or any of the above possibleimplementation modes, in another possible implementation mode of thefirst aspect, the terminal device obtains the transmission power of thetarget uplink signal based on the transmission power of the referenceuplink signal and an offset.

In a second aspect, a terminal device is provided to be used forperforming the method of above first aspect or the method in anypossible implementation mode of the first aspect. Specifically, theterminal device includes function modules used for executing the methodin the first aspect or any possible implementation mode of the firstaspect.

In a third aspect, a terminal device is provided, including: aprocessor, a memory, and a transceiver. The processor, the memory, andthe transceiver communicate with each other through internal connectionpaths to transfer control and/or data signals, so that the terminaldevice implements the method in the first aspect or any possibleimplementation mode of the first aspect.

In a fourth aspect, a computer readable medium for storing a computerprogram is provided. The computer program includes instructions forexecuting any one of the above methods or any one of the above possibleimplementation modes.

BRIEF DESCRIPTION OF DRAWINGS

In order to describe technical solutions of implementations of thepresent disclosure more clearly, accompanying drawings that need to beused in descriptions of the implementations or the prior art will bebriefly introduced below. It is apparent that the accompanying drawingsdescribed below are only some implementations of the present disclosure,and for a person of ordinary skill in the art, other drawings may beobtained according to these drawings without paying an inventive effort.

FIG. 1 is a schematic diagram of a wireless communication systemaccording to an implementation of the present disclosure.

FIG. 2 is a schematic flowchart of a wireless communication methodaccording to an implementation of the present disclosure.

FIG. 3 is a schematic block diagram of a terminal device according to animplementation of the present disclosure.

FIG. 4 is a schematic block diagram of a system chip according to animplementation of the present disclosure.

FIG. 5 is a schematic block diagram of a communication device accordingto an implementation of the present disclosure.

DETAILED DESCRIPTION

Technical solutions in implementations of the present disclosure will bedescribed below with reference to the drawings in implementations of thepresent disclosure. It is apparent that the implementations describedare just some implementations of the present disclosure, but not allimplementations of the present disclosure. According to theimplementations of the present disclosure, all other implementationsachieved by a person of ordinary skill in the art without paying aninventive effort are within the protection scope of the presentdisclosure.

Technical solutions of implementations of the present disclosure may beapplied to various communication systems, such as, a Global System ofMobile communication (GSM) system, a Code Division Multiple Access(CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system,a General Packet wireless Service (GPRS) system, a Long Term Evolution(LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE TimeDivision Duplex (TDD) system, a Universal Mobile TelecommunicationSystem (UMTS) system, a Worldwide Interoperability for Microwave Access(WiMAX) communication system, or a future 5G system (or named as a NewRadio (NR) system).

FIG. 1 shows a wireless communication system 100 to which animplementation of the present disclosure is applied. The wirelesscommunication system 100 may include a network device 110. The networkdevice 110 may be a device that communicates with a terminal device. Thenetwork device 110 may provide communication coverage for a specificgeographical area, and may communicate with a terminal device (e.g., aUE) in the coverage area. Optionally, the network device 110 may be aBase Transceiver Station (BTS) in a GSM system or CDMA system, a NodeB(NB) in a WCDMA system, an Evolutional Node B (eNB or eNodeB) in an LTEsystem, or a radio controller in a Cloud Radio Access Network (CRAN). Orthe network device may be a relay station, an access point, avehicle-mounted device, a wearable device, a network side device in afuture 5G network, or a network device in a future evolved Public LandMobile Network (PLMN).

The wireless communication system 100 further includes at least oneterminal device 120 in the coverage area of the network device 110. Theterminal device 120 may be mobile or fixed. Optionally, the terminaldevice 120 may be referred to as an access terminal, a User Equipment(UE), a subscriber unit, a subscriber station, a mobile station, aremote station, a remote terminal, a mobile device, a user terminal, aterminal, a wireless communication device, a user agent, or a userapparatus. The access terminal may be a cellular phone, a cordlessphone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop(WLL) station, a Personal Digital Assistant (PDA), a handheld device ora computing device with a wireless communication function, or otherprocessing device connected to a wireless modem, a vehicle-mounteddevice, a wearable device, a terminal device in a future 5G network, ora terminal device in a future evolved Public Land Mobile Network (PLMN),or the like.

Optionally, a terminal direct connection (Device to Device, D2D)communication may be performed between the terminal devices 120.

Optionally, the 5G system or network may also be referred to as a NewRadio (NR) system or network.

FIG. 1 exemplifies one network device and two terminal devices.Optionally, the wireless communication system 100 may include multiplenetwork devices, and another quantity of terminal devices may beincluded within a coverage area of each network device, which is notrestricted in implementations of the present disclosure.

Optionally, the wireless communication system 100 may further includeother network entities such as a network controller, a mobile managemententity, which is not restricted in implementations of the presentdisclosure.

It should be understood that terms “system” and “network” are often usedinterchangeably in this document. Term “and/or” in this document ismerely an association relationship describing associated objects,indicating that there may be three relationships, for example, A and/orB may indicate three cases: A alone, A and B, and B alone. In addition,symbol “/” in this document generally indicates that objects before andafter the symbol “/” have an “or” relationship.

FIG. 2 is a schematic flowchart of a wireless communication method 200according to an implementation of the present disclosure. The method 200may optionally be applied to the system shown in FIG. 1, but is notlimited thereto. The method 200 includes at least some of followingcontents of acts 210 to 230.

In act 210, a terminal device determines a reference uplink signal of atarget uplink signal. Wherein determining the reference uplink signal ofthe target uplink signal is used for determining a transmission power ofthe target uplink signal based on a transmission power of the referenceuplink signal.

Optionally, the target uplink signal may be a Physical Uplink SharedChannel (PUSCH), a Physical Uplink Control Channel (PUCCH), a PhysicalRandom Access Channel (PRACH), a Phase Tracking Reference Signal (PTRS),or a Sounding Reference Signal (SRS).

Optionally, the reference uplink signal may be a PUSCH, a PUCCH, aPRACH, a PTRS, or an SRS.

It should be understood that the signal is a channel (for example, thetarget uplink signal is a PUSCH) mentioned in the present disclosuremeans that the signal is transmitted through the channel.

Optionally, the target uplink signal and the reference uplink signal maybe signals in different systems (networks). For example, the targetuplink signal is an uplink signal of an NR system and the referenceuplink signal is an uplink signal of an LTE system.

Of course, the target uplink signal and the reference uplink signal mayalso be signals in the same system (network).

Optionally, the target uplink signal and the reference uplink signal maybe uplink signals of different types. In the present disclosure, a typeof an uplink signal may be distinguished by a transmission mode of theuplink signal or a purpose of the uplink signal.

The target uplink signal may be any one of a PUSCH, a PUCCH, a PRACH, aPTRS, and an SRS, and the reference uplink signal may be any one of aPUSCH, a PUCCH, a PRACH, a PTRS, and an SRS, which is of different typefrom the target uplink signal.

For example, the target uplink signal is a PUCCH, and the referenceuplink signal may be an SRS; or, the target uplink signal is an SRS, andthe reference uplink signal may be a PUCCH.

Optionally, the target uplink signal and the reference uplink signal maybe uplink signals of the same type.

For example, the target uplink signal is an SRS and the reference uplinksignal is another SRS. Or, the target uplink signal is a PUCCH and thereference uplink signal is another PUCCH.

Optionally, the target uplink signal is an SRS transmitted on a firstSRS resource, and the reference uplink signal is an SRS transmitted on asecond SRS resource associated with the first SRS resource.

It should be understood that an association relationship between thefirst SRS and the second SRS mentioned here may be in various ways. Anintroduction will be given below in combination with several ways.

Optionally, the first SRS resource and the second SRS resource belong tothe same SRS resource group.

Optionally, the SRS resource group may include multiple SRS resources.

Optionally, parameter configuration of each SRS resource in the multipleSRS resources is independent of those of other SRS resources, which mayspecifically include at least one of following parameter configurations:a time domain resource occupied for transmitting an SRS; a frequencydomain resource occupied for transmitting an SRS; an SRS sequence usedfor transmitting an SRS; the number of times of transmitting an SRSafter receiving a trigger signaling sent by a network device. A networkside may allocate a configuration parameter for each SRS resource withan independent signaling.

Optionally, the second SRS resource is an SRS resource, configured by anetwork device for the first SRS resource, in the SRS resource group.

Specifically, the network device may configure a reference SRS resourcefor all SRS resources in the SRS resource group (the reference SRSresource also belongs to the SRS resource group, for example, an SRSresource with a lowest index in the SRS resource group). The terminaldevice may determine transmission powers for transmitting SRSs on otherSRS resources based on a transmission power of an SRS transmitted on thereference SRS resource, so that transmission powers for transmittingSRSs on all SRS resources in the SRS resource group may be the same.

Alternatively, the network device may configure different reference SRSresources for different SRS resources in the SRS resource group. Forexample, a reference resource configured for an SRS resource 1 and anSRS resource 2 may be an SRS resource 3, and a reference resourcesconfigured for an SRS resource 4 and an SRS resource 5 may be an SRSresource 6, so that transmission powers for transmitting SRSs on the SRSresource 1, the SRS resource 2 and the SRS resource 3 may be the same,and transmission powers for transmitting SRSs on the SRS resource 4, theSRS resource 5 and the SRS resource 6 may be the same.

Alternatively, the second SRS resource may be a preset SRS resource inthe SRS resource group. The preset SRS resource mentioned here is notconfigured by a network device, for example, the preset SRS resource isan SRS resource specified in a protocol.

Specifically, a reference SRS resource may be preset for all SRSresources in the SRS resource group, and the terminal device maydetermine transmission powers for transmitting SRSs on other SRSresources based on a transmission power of an SRS transmitted on thereference SRS resource, so that transmission powers of SRSs transmittedon all SRS resources in the SRS resource group may be the same.

Alternatively, reference SRS resources preset for different SRSresources in the SRS resource group may be different. For example, areference resource preset for an SRS resource 1 and an SRS resource 2may be an SRS resource 3, and a reference resource preset for an SRSresource 4 and an SRS resource 5 may be an SRS resource 6, so thattransmission powers for transmitting SRSs on the SRS resource 1, the SRSresource 2 and the SRS resource 3 may be the same, and transmissionpowers for transmitting SRSs on the SRS resource 4, the SRS resource 5and the SRS resource 6 may be the same.

Optionally, the target uplink signal may be SRSs transmitted on multipleSRS resources, for example, may be SRSs transmitted on all SRS resourcesin a SRS resource group. If SRSs transmitted on a SRS resource groupcorresponds to a reference uplink signal, then the same transmissionpower may be determined when all SRS resources in the group are used fortransmitting the SRSs, which may be used for an uplink beam management.

Optionally, the SRS resource group may be an SRS resource groupconfigured in advance by a network side for an uplink beam management.

Optionally, the uplink beam management includes a transmitting beammanagement and/or a receiving beam management.

For a transmitting beam management, a terminal device may use differenttransmission beams to transmit SRSs on different SRS resources inmultiple SRS resources. A network device may select at least one SRSresource to indicate to the terminal device based on received signalstrengths on the multiple SRS resources, thus enabling the terminaldevice to transmit data using a beam corresponding to the SRS resource.

For a receiving beam management, a terminal device may use the same beamto transmit SRSs on multiple SRS resources. A network device may receiveSRS signals on multiple SRS resources based on different receivingbeams, and select a receiving beam for receiving data according toreceived signal strengths.

Optionally, in an implementation of the present disclosure, whenperforming the beam management, a terminal device may use the sametransmission power to transmit SRSs. In this case, a network device mayconfigure the same reference SRS resource for SRS resources in a SRSresource group, so as to transmit SRSs, on the SRS resources in the SRSresource group, all by a transmission power for transmitting SRSs on thereference SRS resource, thus an uplink beam management is achieved.

Optionally, the second SRS resource associated with the first SRSresource is an SRS resource configured by a network device for aterminal device through an SRS Resource Indication (SRI) and associatedwith the first SRS resource.

For example, when configuring an SRS resource for transmitting a targetuplink signal, the network device configures an associated SRS resourcefor the SRS resource through an upper-layer signaling.

For example, before receiving the SRI, the terminal device may transmitSRS signals on an SRS resource group including an SRS resource indicatedby the SRI, and different SRS resources may optionally adopt differenttransmission powers for transmitting. After receiving the SRS on the SRSresource group, the network device may select an SRS resource 1 and mayindicate the selected SRS resource 1 to the terminal device through theSRI. Specifically, the network device may indicate the selected SRSresource 1 to the terminal device through DCI for scheduling uplink datatransmission or scheduling uplink control information transmission.Therefore, when transmitting the target uplink signal, the terminaldevice may adopt the same transmission power (which may be atransmission power used for transmitting an SRS on the present SRSresource 1 or a transmission power used for transmitting an SRS on aprevious SRS resource 1) as used for transmitting an SRS on the SRSresource 1.

Optionally, the target uplink signal is a PUSCH. The terminal device maydetermine a reference uplink signal based on Downlink ControlInformation (DCI) for scheduling the PUSCH.

For example, the network device may indicate an SRS resource by DCI forscheduling the PUSCH and use an SRS transmitted on the SRS resource asthe reference uplink signal. Specifically, the SRS may be indicated bythe SRS resource indicated with the above-mentioned SRI carried in theDCI mentioned above, so that the terminal device may determine atransmission power of the PUSCH based on a transmission power fortransmitting the SRS on the SRS resource.

Optionally, the SRS transmitted on the SRS resource indicated by theabove-mentioned SRI may be used as a reference uplink signal for targetuplink signals other than PUSCH or SRS, which is not specificallyrestricted in implementations of the present disclosure.

Optionally, the target uplink signal is a PTRS, and the reference uplinksignal is a PUSCH or a DMRS transmitted on a Demodulation ReferenceSignal (DMRS) port associated with the PTRS.

Optionally, the target uplink signal and the reference uplink signalsatisfy a specific relationship on at least one of a frequency domaintransmission resource, a time domain transmission resource, atransmission port, and a transmission beam.

In an implementation mode, the target uplink signal and the referenceuplink signal are transmitted on the same carrier or adjacent carriers.

Optionally, in the implementation mode, the target uplink signal and thereference uplink signal may not be signals under the same system(network), for example, the target uplink signal is an uplink signal ofa New Radio (NR) system, and the reference uplink signal is an uplinksignal of a Long Term Evolution (LTE) system. For example, if the uplinksignal of the NR system and the uplink signal of the LTE system work onthe same carrier, a similar transmission power may be used fortransmission.

In an implementation mode, the target uplink signal and the referenceuplink signal are transmitted through the same port.

In an implementation mode, the target uplink signal and the referenceuplink signal are transmitted through the same beam.

In an implementation mode, the target uplink signal is an SRS, and thereference uplink signal is a PUSCH or a PUCCH transmitted last timebefore transmitting the SRS.

In act 220, the terminal device determines a transmission power of thetarget uplink signal according to a transmission power of the referenceuplink signal.

In an implementation mode, the terminal device determines thetransmission power of the reference uplink signal as the transmissionpower of the target uplink signal.

In an implementation mode, the terminal device obtains the transmissionpower of the target uplink signal based on the transmission power of thereference uplink signal and an offset.

Optionally, the offset may be notified to the terminal device by thenetwork device through an upper-layer signaling or a DCI signaling. Fordifferent target uplink signals, there may be different offsets (at thispoint, the reference uplink signals corresponding to different targetuplink signals may be the same, of course, may also be different).

In act 230, the terminal device transmits the target uplink signal byusing the determined transmission power.

Therefore, in an implementation of the present disclosure, a terminaldevice may determine a transmission power of a target uplink signalaccording to a transmission power of a reference uplink signal, suchthat by referring to a transmission power of an uplink signal, atransmission power of another uplink signal may be reasonably determinedas required and a power control parameter of the other uplink signal mayfurther be configured, thereby a communication performance may beimproved.

FIG. 3 is a schematic block diagram of a terminal device 300 accordingto an implementation of the present disclosure. As shown in FIG. 3, theterminal device 300 includes a processing unit 310 and a communicationunit 320.

The processing unit 310 is used for determining a reference uplinksignal of a target uplink signal, and determining a transmission powerof the target uplink signal according to a transmission power of thereference uplink signal.

The communication unit 320 is used for transmitting the target uplinksignal by using the transmission power determined by the processingunit.

Optionally, the target uplink signal is a Physical Uplink Shared Channel(PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical RandomAccess Channel (PRACH), a Phase Tracking Reference Signal (PTRS), or aSounding Reference Signal (SRS).

Optionally, the reference uplink signal is a PUSCH, a PUCCH, a PRACH, aPTRS, or an SRS.

Optionally, the target uplink signal and the reference uplink signal areuplink signals of a same type.

Optionally, the target uplink signal is an SRS transmitted on a firstSRS resource, and the reference uplink signal is an SRS transmitted on asecond SRS resource associated with the first SRS resource.

Optionally, the first SRS resource and the second SRS resource belong toa same SRS resource group.

Optionally, the second SRS resource is an SRS resource configured by anetwork device for the first SRS resource in the SRS resource group; or,the second SRS resource is a preset SRS resource in the SRS resourcegroup.

Optionally, the same SRS resource group is used for an uplink beammanagement.

Optionally, the second SRS resource is an SRS resource configured forthe terminal device by the network device through an SRS ResourceIndication (SRI) and associated with the first SRS resource.

Optionally, the target uplink signal is a PUSCH; the processing unit 310is further used for determining the reference uplink signal based onDownlink Control Information (DCI) for scheduling the PUSCH.

Optionally, the target uplink signal is a PTRS, and the reference uplinksignal is a PUSCH or a DMRS transmitted on a Demodulation ReferenceSignal (DMRS) port associated with the PTRS.

Optionally, the target uplink signal and the reference uplink signalsatisfy a specific relationship on at least one of a frequency domaintransmission resource, a time domain transmission resource, atransmission port and a transmission beam.

Optionally, the target uplink signal and the reference uplink signal aretransmitted on a same carrier or adjacent carriers.

Optionally, the target uplink signal and the reference uplink signal aretransmitted through a same port.

Optionally, the target uplink signal and the reference uplink signal aretransmitted through a same beam.

Optionally, the target uplink signal is an SRS, and the reference uplinksignal is a PUSCH or a PUCCH transmitted last time before transmittingthe SRS.

Optionally, the target uplink signal is an uplink signal of a New Radio(NR) system, and the reference uplink signal is an uplink signal of aLong Term Evolution (LTE) system.

Optionally, the processing unit 310 is further used for determining thetransmission power of the reference signal uplink signal as thetransmission power of the target uplink signal.

Optionally, the processing unit 310 is further used for obtaining thetransmission power of the target uplink signal based on the transmissionpower of the reference uplink signal and an offset.

It should be understood that the terminal device 300 may correspond tothe terminal device in the method 200, and it may realize correspondingoperations of the terminal device in the method 200, which will not berepeated here for sake of conciseness.

FIG. 4 is a schematic structural diagram of a system chip 400 accordingto an implementation of the present disclosure. The system chip 400 inFIG. 4 includes an input interface 401, an output interface 402, aprocessor 403 and a memory 404. The processor 403 and the memory 404 maybe connected through internal communication connection lines. Theprocessor 403 is used for executing codes in the memory 404.

Optionally, when the codes are executed, the processor 403 implementsthe method implemented by the terminal device in the methodimplementations. This will not be repeated here for sake of conciseness.

FIG. 5 is a schematic block diagram of a communication device 500according to an implementation of the present disclosure. As shown inFIG. 5, the communication device 500 includes a processor 510 and amemory 520. The memory 520 may store program codes, and the processor510 may execute the program codes stored in the memory 520.

Optionally, as shown in FIG. 5, the communication device 500 may includea transceiver 530, and the processor 510 may control the transceiver 530to communicate with an external device.

Optionally, the processor 510 may call the program codes stored in thememory 520 to perform corresponding operations of the terminal device inthe method implementations. This will not be repeated here for sake ofconciseness.

It should be understood that the processor in an implementation of thepresent disclosure may be an integrated circuit chip with a capabilityfor processing signals. In an implementation process, the actions ofmethod implementations described above may be accomplished by integratedlogic circuits of hardware in the processor or instructions in the formof software. The above processor may be a general purpose processor, adigital signal processor (DSP), an application specific integratedcircuit (ASIC), a field programmable gate array (FPGA), or otherprogrammable logic device, discrete gate or transistor logic device, ordiscrete hardware component. Various methods, acts and logic blockdiagrams disclosed in implementations of the present disclosure may beaccomplished or implemented. The general purpose processor may be amicroprocessor or the processor may be any conventional processor or thelike. The actions of the method disclosed in connection with theimplementations of the present disclosure may be directly embodied by anexecution of a hardware decoding processor, or by an execution of acombination of hardware and software modules in the decoding processor.The software modules may be located in a storage medium commonly used inthe art, such as a random access memory, a flash memory, a read-onlymemory, a programmable read-only memory or an electrically erasableprogrammable memory, or a register. The storage medium is located in thememory, and the processor reads the information in the memory andcompletes the actions of the method in combination with its hardware.

It should be understood that the memory in implementations of thepresent disclosure may be a volatile memory or non-volatile memory, ormay include both volatile and non-volatile memory. The non-volatilememory may be a read-only memory (ROM), a programmable ROM (PROM), anerasable programmable ROM (EPROM), an electrically erasable programmableROM (EEPROM), or a flash memory. The volatile memory may be a randomaccess memory (RAM) which serves as an external cache. As an example,but not as a limitation, many forms of RAMs are available, such as astatic random access memory (SRAM), a dynamic random access memory(DRAM), a synchronous dynamic random access memory (SDRAM), a doubledata rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a SynchlinkDRAM (SLDRAM), and a Direct Rambus RAM (DR RAM). It should be noted thatthe memories of the systems and methods described here are intended toinclude, but are not limited to, these and any other suitable types ofmemories.

Those of ordinary skill in the art will recognize that the exemplaryunits and algorithm acts described in connection with theimplementations disclosed in the document may be implemented inelectronic hardware, or a combination of computer software andelectronic hardware. Whether these functions are implemented in hardwareor software depends on a specific application and design constraint ofthe technical solution. Skilled in the art may use different manners torealize the described functions for each particular application, butsuch realization should not be considered to be beyond the scope of thepresent disclosure.

Those skilled in the art may clearly understand that for convenience andconciseness of description, the specific working process of the system,device and unit described above may refer to the corresponding processin the aforementioned implementations of methods, and details are notdescribed here again.

In several implementations provided by the present disclosure, it shouldbe understood that the disclosed system, device and method may beimplemented in other ways. For example, the apparatus implementationsdescribed above are only illustrative, for example, a division of theunits is only a logical function division, and there may be otherdivision manners in actual realization. For example, multiple units orcomponents may be combined or integrated into another system, or somefeatures may be ignored or not executed. On the other hand, the mutualcoupling or direct coupling or communication connection shown ordiscussed may be indirect coupling or communication connection throughsome interfaces, devices or units, and may be in electrical, mechanicalor other forms.

The units described as separated components may or may not be physicallyseparated, and the component shown as a unit may or may not be aphysical unit, i.e., it may be located in one place or may be allocatedover multiple network units. Some or all of the units may be selectedaccording to practical needs to achieve a purpose of the solution of theimplementation.

In addition, various functional units in various implementations of thepresent disclosure may be integrated in one processing unit, or variousunits may be physically present separately, or two or more units may beintegrated in one unit.

If the functions may be implemented in a form of a software functionalunit and sold or used as a separate product, the software may be storedin a computer readable storage medium. Based on this understanding, thetechnical solution of the present disclosure, in essence, or the partcontributing to the existing art, or the part of the technical solution,may be embodied in the form of a software product stored in a storagemedium, including several instructions for causing a computer device(which may be a personal computer, a server, or a network device, etc.)to perform all or part of the acts of the methods described in variousimplementations of the present disclosure.

The foregoing are merely exemplary implementations of the presentdisclosure, but the protection scope of the present disclosure is notlimited thereto. Any person skilled in the art may easily conceivevariations or substitutions within the technical scope disclosed by thepresent disclosure, which should be included within the protection scopeof the present disclosure. Therefore, the protection scope of thepresent disclosure should be subject to the protection scope of theclaims.

1. A method for wireless communication, comprising: determining, by aterminal device, a reference uplink signal of a target uplink signal;determining, by the terminal device, a transmission power of the targetuplink signal according to a transmission power of the reference uplinksignal; and transmitting, by the terminal device, the target uplinksignal by using the determined transmission power.
 2. (canceled) 3.(canceled)
 4. The method of claim 1, wherein the target uplink signaland the reference uplink signal are uplink signals of a same type. 5.The method of claim 4, wherein the target uplink signal is an SRStransmitted on a first SRS resource, and the reference uplink signal isan SRS transmitted on a second SRS resource associated with the firstSRS resource.
 6. The method of claim 5, wherein the first SRS resourceand the second SRS resource belong to a same SRS resource group.
 7. Themethod of claim 6, wherein the second SRS resource is an SRS resourceconfigured by a network device for the first SRS resource in the SRSresource group; or, the second SRS resource is a preset SRS resource inthe SRS resource group.
 8. (canceled)
 9. (canceled)
 10. The method ofclaim 1, wherein the target uplink signal is a PUSCH; and determining,by the terminal device, the reference uplink signal of the target uplinksignal, comprises: determining, by the terminal device, the referenceuplink signal based on Downlink Control Information (DCI) for schedulingthe PUSCH.
 11. The method of claim 1, wherein the target uplink signalis a PTRS, and the reference uplink signal is a PUSCH or a DMRStransmitted on a Demodulation Reference Signal (DMRS) port associatedwith the PTRS.
 12. The method of claim 1, wherein the target uplinksignal and the reference uplink signal satisfy a specific relationshipon at least one of: a frequency domain transmission resource, a timedomain transmission resource, a transmission port, or a transmissionbeam.
 13. The method of claim 12, wherein the target uplink signal andthe reference uplink signal are transmitted on a same carrier oradjacent carriers, or, wherein the target uplink signal and thereference uplink signal are transmitted through a same port, or, whereinthe target uplink signal and the reference uplink signal are transmittedthrough a same beam, or, wherein the target uplink signal is an SRS, andthe reference uplink signal is a PUSCH or a PUCCH transmitted last timebefore transmitting the SRS. 14-17. (canceled)
 18. The method of claim1, wherein determining, by the terminal device, the transmission powerof the target uplink signal according to the transmission power of thereference uplink signal, comprises: determining, by the terminal device,the transmission power of the reference uplink signal as thetransmission power of the target uplink signal.
 19. (canceled)
 20. Aterminal device, comprising a processor and a transceiver; wherein theprocessor is used for determining a reference uplink signal of a targetuplink signal, and determining a transmission power of the target uplinksignal according to a transmission power of the reference uplink signal;and the transceiver is used for transmitting the target uplink signal byusing the transmission power determined by the processor.
 21. (canceled)22. (canceled)
 23. The terminal device of claim 20, wherein the targetuplink signal and the reference uplink signal are uplink signals of asame type.
 24. The terminal device of claim 23, wherein the targetuplink signal is an SRS transmitted on a first SRS resource, and thereference uplink signal is an SRS transmitted on a second SRS resourceassociated with the first SRS resource.
 25. The terminal device of claim24, wherein the first SRS resource and the second SRS resource belong toa same SRS resource group.
 26. The terminal device of claim 25, whereinthe second SRS resource is an SRS resource configured by a networkdevice for the first SRS resource in the SRS resource group; or, thesecond SRS resource is a preset SRS resource in the SRS resource group.27. (canceled)
 28. (canceled)
 29. The terminal device of claim 20,wherein the target uplink signal is a PUSCH; and the processor isfurther used for determining the reference uplink signal based onDownlink Control Information (DCI) for scheduling the PUSCH.
 30. Theterminal device of claim 20, wherein the target uplink signal is a PTRS,and the reference uplink signal is a PUSCH or a DMRS transmitted on aDemodulation Reference Signal (DMRS) port associated with the PTRS. 31.The terminal device of claim 20, wherein the target uplink signal andthe reference uplink signal satisfy a specific relationship on at leastone of: a frequency domain transmission resource, a time domaintransmission resource, a transmission port, or a transmission beam. 32.The terminal device of claim 31, wherein the target uplink signal andthe reference uplink signal are transmitted on a same carrier oradjacent carriers, or, wherein the target uplink signal and thereference uplink signal are transmitted through a same port, or, whereinthe target uplink signal and the reference uplink signal are transmittedthrough a same beam, or, wherein the target uplink signal is an SRS, andthe reference uplink signal is a PUSCH or a PUCCH transmitted last timebefore transmitting the SRS. 33-36. (canceled)
 37. The terminal deviceof claim 20, wherein the processor is further used for determining thetransmission power of the reference signal uplink signal as thetransmission power of the target uplink signal.
 38. (canceled)